CVE catalog
CVE-2017-5495
UBUNTU-CVE-2017-5495
- Severity
- High · CVSS 7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 18.80% · Oct 25, 2026
All versions of Quagga, 0.93 through 1.1.0, are vulnerable to an unbounded memory allocation in the telnet 'vty' CLI, leading to a Denial-of-Service of Quagga daemons, or even the entire host. When Quagga daemons are configured with their telnet CLI enabled, anyone who can connect to the TCP ports can trigger this vulnerability, prior to authentication. Most distributions restrict the Quagga telnet interface to local access only by default. The Quagga telnet interface 'vty' input buffer grows automatically, without bound, so long as a newline is not entered. This allows an attacker to cause the Quagga daemon to allocate unbounded memory by sending very long strings without a newline. Eventually the daemon is terminated by the system, or the system itself runs out of memory. This is fixed in Quagga 1.1.1 and Free Range Routing (FRR) Protocol Suite 2017-01-10.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Alpine | quagga | 3.10 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.11 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.12 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.13 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.14 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.15 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.16 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.17 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.18 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.19 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.20 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.21 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.22 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.23 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.24 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.5 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.6 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.7 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.8 | 1.1.1-r0 | fixed |
| Alpine | quagga | 3.9 | 1.1.1-r0 | fixed |
| Ubuntu | quagga | 14.04 | 0.99.22.1-2 | vulnerable |
| Ubuntu | quagga | 14.04 | 0.99.22.4-1 | vulnerable |
| Ubuntu | quagga | 14.04 | 0.99.22.4-2 | vulnerable |
| Ubuntu | quagga | 14.04 | 0.99.22.4-3 | vulnerable |
| Ubuntu | quagga | 14.04 | 0.99.22.4-3ubuntu1 | vulnerable |
| Ubuntu | quagga | 14.04 | 0.99.22.4-3ubuntu1.1 | vulnerable |
| Ubuntu | quagga | 14.04 | 0.99.22.4-3ubuntu1.2 | vulnerable |
| Ubuntu | quagga | 14.04 | 0.99.22.4-3ubuntu1.3 | vulnerable |
| Ubuntu | quagga | 14.04 | 0.99.22.4-3ubuntu1.4 | fixed |
| Ubuntu | quagga | 16.04 | 0.99.24.1-2 | vulnerable |
| Ubuntu | quagga | 16.04 | 0.99.24.1-2ubuntu1 | vulnerable |
| Ubuntu | quagga | 16.04 | 0.99.24.1-2ubuntu1.1 | vulnerable |
| Ubuntu | quagga | 16.04 | 0.99.24.1-2ubuntu1.2 | vulnerable |
| Ubuntu | quagga | 16.04 | 0.99.24.1-2ubuntu1.3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Alpine | quagga | apk | 3.10 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.11 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.12 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.13 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.14 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.15 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.16 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.17 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.18 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.19 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.20 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.21 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.22 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.23 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.24 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.5 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.6 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.7 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.8 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Alpine | quagga | apk | 3.9 | 1.1.1-r0 | Not reported | ALPINE-CVE-2017-5495 | Not reported |
| Ubuntu | quagga | deb | 14.04 | 0.99.22.4-3ubuntu1.4 | Not reported | UBUNTU-CVE-2017-5495 | Not reported |
| Ubuntu | quagga | deb | 16.04 | 0.99.24.1-2ubuntu1.3 | Not reported | UBUNTU-CVE-2017-5495 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2017_2294-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2017-5495]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2017-5495]
- [https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-5495.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]